alkyl

adjective
al·​kyl | \ ˈal-kəl How to pronounce alkyl (audio) \

Definition of alkyl

 (Entry 1 of 2)

: having a monovalent organic group and especially one CnH2n+1 (such as methyl) derived from an alkane (such as methane)

alkyl

noun

Definition of alkyl (Entry 2 of 2)

: a compound of one or more alkyl groups with a metal mercury alkyls

Examples of alkyl in a Sentence

Recent Examples on the Web: Adjective Perfluorinated and polyfluorinated alkyl substances, or PFASs, are considered indestructible chemicals. Lars Fischer, Scientific American, 31 Jan. 2022 The alkyl side chain is the driving force behind a cannabinoid's effects on humans. Kristen Rogers, CNN, 3 Feb. 2020 Recent Examples on the Web: Noun The second concern, Radić says, is that A-232’s alkyl amine group could enable it to target other enzymes in addition to AChE—and that raises the specter of severe symptoms arising months or years after exposure. Richard Stone, Science | AAAS, 19 Mar. 2018 The alkyl chloride and organophosphate precursors are toxic, but not nearly to the degree of VX, which was developed in the 1950s for chemical warfare and is the most potent of all nerve agents. Ben Otto, WSJ, 6 Oct. 2017 Dragna recommends finding personal care products that contain surfactants from the alkyl polyglycosides instead, the most common of which is decyl glucoside, because the head group is a sugar instead of a sulfate. Ajc Homepage, ajc, 28 Aug. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'alkyl.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of alkyl

Adjective

1882, in the meaning defined above

Noun

1889, in the meaning defined above

History and Etymology for alkyl

Noun

probably from German, from Alkohol alcohol

Learn More About alkyl

Dictionary Entries Near alkyl

alkyd

alkyl

alkylamino

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Statistics for alkyl

Cite this Entry

“Alkyl.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/alkyl. Accessed 15 Aug. 2022.

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More Definitions for alkyl

alkyl

adjective
al·​kyl | \ ˈal-kəl How to pronounce alkyl (audio) \

Medical Definition of alkyl

 (Entry 1 of 2)

: of, relating to, or being an alkyl alkyl mercurials attack the brain cells— L. J. Goldwater

alkyl

noun

Medical Definition of alkyl (Entry 2 of 2)

1 : a monovalent aliphatic radical CnH2n+1 (as methyl) broadly : a monovalent aliphatic, aromatic-aliphatic, or alicyclic hydrocarbon radical
2 : a compound of one or more alkyl groups with a metal

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